sum of only the second and third element in a vector in matlab

You can achieve this by creating a vector and then summing the second and third elements together. Here is an example in MATLAB:

main.m
% Create a vector
vector = [5, 3, 8, 2, 6];

% Sum of the second and third elements
sum_second_third = vector(2) + vector(3);
disp(sum_second_third);
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This code will output 11, which is the sum of the second and third elements (3 + 8) in the vector [5, 3, 8, 2, 6].